Rollers for Milgard vinyl door

A quick learner from Denver says:
Howdy,

Looking for a roller that fits my Milgard sliding vinyl door. Current rollers have an awkward cap on the top. Not sure which part I need for replacement. Please see photos and advise. I've seen a couple posts with these rollers and both posts had different recommendations.
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Tom from SWISCO responded:

Hello! This roller looks like a match for our 81-018 . As long as our dimensions match up to yours then this should work just fine. Just note that ours doesn't come with that top bracket yours has. I actually don't think that piece is made anymore so you will need to reuse it.

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